Highlights
Denial of Service: 1 prior fix. Scrutinize any change in this area.
go/pkg/cas/upload.go: most-fixed (1 issue). Treat as high-risk during review.
1 high-severity fix in this history; regressions here are high-impact.
Recurring patterns
The bug types that recur here, drawn from past fixes, not open vulnerabilities.
Path Traversal: A sibling-directory prefix bypass in getAbsPath allowed escaping the intended base directory, a classic path traversal flaw that can lead to arbitrary file read/write depending on downstream usage.
Denial of Service: Unbounded concurrent FindMissingBlobs RPCs can exhaust local resources or overwhelm the remote CAS, enabling a denial-of-service condition from a single client or malicious input.